NAYRY-J/O 0.6/1kV SWA Aluminium Power Cable Underground & Industrial Electrical Distribution, Flame Retardant, PVC Sheath
Cable Type | NAYRY-J/O |
Application | Power distribution in power stations, industrial installations, switchgears, and local mains. Suitable for fixed installation underground, indoors, in cable ducts, open air, and in water where high mechanical protection is required. |
Voltage Rating (Uo/U) | 0.6/1 kV |
Test Voltage | 4 kV / 50 Hz |
Laying Temperature | Minimum -5 °C |
Operating Temperature | -50 °C to +70 °C |
Maximum Conductor Temperature | +70 °C |
Short-Circuit Temperature | 160 °C |
Minimum Bending Radius | 15 × overall diameter |
Standards & Compliance
Standard / Requirement | Description |
|---|---|
Design Standard | DIN VDE 0276-603 (HD 603) |
Core Identification | HD 308 S2 |
Flame Retardancy | EN 50265-2-1, IEC / EN 60332-1 |
Dimensions
No. of Cores | Nominal Cross-Sectional Area (mm²) | Conductor Type | Nominal Overall Diameter (mm) | Nominal Weight (kg/km) |
|---|---|---|---|---|
3 + 1 | 35 + 16 | SM / RM | 31.0 | 1460 |
3 + 1 | 50 + 25 | SM / RM | 35.7 | 1910 |
3 + 1 | 70 + 35 | SM / RM | 39.6 | 2460 |
3 + 1 | 95 + 50 | SM / RM | 46.0 | 3035 |
3 + 1 | 120 + 70 | SM / RM | 49.0 | 3785 |
3 + 1 | 150 + 95 | SM / RM | 54.5 | 4610 |
3 + 1 | 185 + 95 | SM / RM | 59.8 | 5425 |
3 + 1 | 240 + 120 | SM / RM | 68.9 | 6575 |
Electrical Characteristics
Nominal Cross-Sectional Area (mm²) | Current Carrying Capacity – In Air (A) | Current Carrying Capacity – In Ground (A) | Maximum Conductor Resistance at 20 °C (Ω/km) |
|---|---|---|---|
35 + 16 | 101 | 123 | 0.868 / 1.910 |
50 + 25 | 121 | 145 | 0.641 / 1.200 |
70 + 35 | 155 | 180 | 0.443 / 0.868 |
95 + 50 | 189 | 216 | 0.320 / 0.641 |
120 + 70 | 220 | 246 | 0.253 / 0.443 |
150 + 95 | 249 | 276 | 0.206 / 0.320 |
185 + 95 | 287 | 313 | 0.164 / 0.320 |
240 + 120 | 339 | 362 | 0.125 / 0.253 |
The NAYRY-J/O 0.6/1kV SWA (Steel Wire Armoured) Aluminium Power Cable is increasingly recognized in Indonesia’s industrial and underground electrical distribution sectors. But what exactly makes this cable stand out? How does it compare to other power cables, and where should it be installed for maximum safety and efficiency?
What Is the NAYRY-J/O Cable and Where Is It Used?
The NAYRY-J/O cable is designed for medium-voltage power distribution at 0.6/1kV and is particularly suited for environments requiring robust mechanical protection. It is widely applied in:
Power stations for distributing electricity between transformers and switchgears.
Industrial installations, including factories, manufacturing plants, and heavy machinery setups.
Underground fixed installations, where the cable may be placed in ducts, buried in soil, or laid in areas exposed to moisture.
Open-air and water-exposed installations, given that high mechanical and flame-retardant protection is maintained.
Its flame-retardant PVC sheath also makes it suitable for areas where fire safety is a concern, adhering to international standards like EN 50265-2-1 and IEC/EN 60332-1.
How Is the NAYRY-J/O Cable Installed Safely?
Installation is critical to maximize the cable’s performance and longevity:
Underground Laying: Place the cable in free-draining soil, avoiding sharp bends or rocks. Use a minimum of 15 × overall diameter for bending radius.
Interior & Industrial Installations: Install in ducts or cable trays to protect against accidental damage.
Open Air Installations: Ensure the UV-resistant PVC sheath faces direct sunlight, and consider additional mechanical protection if the area is prone to heavy loads or impacts.
Connection & Termination: Use compatible aluminium lugs and armour clamping devices. Proper earthing is mandatory for safety.
Pro Tip: Always follow local electrical regulations and safety codes in Indonesia when laying SWA cables.
What Are the Typical Applications of NAYRY-J/O Cable?
The NAYRY-J/O cable is versatile, supporting a range of industrial and utility scenarios:
Industrial Plants: Feeding machinery, motors, and control equipment.
Power Stations: Linking transformers, switchgear, and distribution boards.
Underground Electrical Networks: Safe energy distribution under soil or inside tunnels.
High Mechanical Stress Zones: Construction sites, ports, or factories with moving equipment.
Case Study – Indonesia:
In Jakarta, a local industrial park replaced ageing copper SWA cables with NAYRY-J/O aluminium cables. The result was cost savings due to aluminium’s lower price and weight, easier handling during installation, and compliance with flame-retardant safety standards in high-risk factory areas.
FAQ: What Do Engineers Commonly Ask About NAYRY-J/O Cable?
Can I Use NAYRY-J/O for High-Temperature Environments?
Yes, the cable can operate continuously up to +70°C, with short-term exposure to 160°C during short-circuit conditions.
How Does Aluminium Compare to Copper in This Cable?
Aluminium offers lower cost and lighter weight, but has slightly higher resistance. This can be compensated by larger conductor sizes, as in the NAYRY-J/O range.
Is the NAYRY-J/O Flame Retardant?
Yes, it meets EN 50265-2-1 and IEC/EN 60332-1 standards, reducing fire propagation risks in industrial and underground installations.
Can This Cable Be Buried Directly in Soil?
Absolutely. The SWA armour protects against mechanical damage, and the PVC sheath is resistant to moisture and UV, suitable for underground installation.
How Do I Terminate the Armour Properly?
Use armour clamps or gland fittings compatible with the cable’s SWA layer. Ensure the earth wire is connected correctly to maintain safety.
What Is the Maximum Pulling Length During Installation?
Follow tensile limits based on conductor size and weight. Overstretching may deform the conductor or damage the insulation.
How Does NAYRY-J/O Compare with Similar Cables?
Feature | NAYRY-J/O | Standard Copper SWA Cable | PVC/XLPE Non-Armoured Cable |
|---|---|---|---|
Conductor | Aluminium | Copper | Copper/Aluminium |
Mechanical Protection | SWA Armour | SWA Armour | None |
Flame Retardancy | EN 50265-2-1 | Varies | Limited |
Cost | Lower | Higher | Lower but less robust |
Weight | Lighter | Heavier | Light but fragile |
Applications | Underground, Industrial, High Stress | Same | Indoor/Low Stress |
Takeaway: NAYRY-J/O offers balanced cost, safety, and durability, making it suitable for Indonesia’s growing industrial and underground electrical networks.
Why Choose NAYRY-J/O for Your Project?
The NAYRY-J/O 0.6/1kV SWA Aluminium Power Cable combines:
Durable SWA mechanical protection
Flame retardancy for industrial safety
Flexible aluminium conductors for lighter handling
Reliable performance in underground and open-air applications
For industrial facilities, power distribution networks, or underground electrical projects in Indonesia, choosing NAYRY-J/O ensures compliance, efficiency, and long-term reliability.
CTA: For detailed sizing, installation support, and Indonesia-specific compliance guidance, contact our local technical team today to secure the right NAYRY-J/O solution for your project.
